Our family computer is a MacBook (13-inch, Mid 2010). Last month my father-in-law talked me through opening it up, cleaning out the dust, and replacing the HDD with an SSD. Still runs great! Nice little unit.
Upgrading the HDD to an SSD is the easiest bump in speed you can get for an older laptop IMO. Now, SSDs are standard, but you can pump a lot of life into an older laptop with that simple swap.
